In a fit of insanity I signed up for this last night, and now I'm thinking Oh my God, what have I done?!? Has anyone ridden the 75 or 100 mile routes or know about them? I'm wondering what the elevation grade is. I can see the average, but I'd like to know more detail, since the average often "hides" reality. I'd like to do the 100 mile, but being a mere mortal, I think the 75 mile is probably a better option. The 75 mile has 4,882 feet elevation gain, the 100 mile has 6,572. I just did the Santa Fe Century that has 4,400 feet of elevation gain, so the 75 mile Boulder ride may not kill me, depending on those grades. Does anyone know the route?